Electro Hardware P357M06F16440 Hex Standoff 4-40 Aluminum

Product Description

The ELECTRO HARDWARE P357M06F16440 is a female hex circuit board standoff designed to create precise, repeatable spacing between PCBs and mounting surfaces in electronic assemblies. Machined from aluminum alloy T3, this standoff features a 4-40 female thread with a 1/4-inch thread depth and a hexagonal body measuring 3/16 inches across flats. The overall length is 1.25 inches. The plain, bright uncoated finish is suitable for standard indoor electronic enclosure environments. Electronics assembly technicians and field service electricians use these standoffs when mounting control boards in HVAC equipment, industrial panels, and commercial electrical enclosures.

This standoff is used in applications requiring a lightweight, corrosion-resistant threaded spacer between a circuit board and a chassis or secondary board. The aluminum construction reduces overall assembly weight compared to steel alternatives. Typical install scenarios include control board mounting inside residential and commercial HVAC units, motor drives, electrical panels, and other enclosures where a 4-40 threaded female standoff is specified. The hex body profile allows wrench tightening for a secure, rattle-free fit.

Key Features

• 4-40 female thread with 1/4-inch thread depth for secure fastener engagement
• Hex body shape allows wrench or nut-driver installation and removal
• Aluminum T3 material grade — lightweight and corrosion resistant
• Overall length of 1.25 inches provides consistent board-to-surface clearance
• Plain bright uncoated finish meets QQ-A-225A Comp 2 fastener standard
• Inch measurement system; length tolerance held to plus or minus 0.005 inches

Compatibility

Designed as an OEM-style replacement or new-installation standoff for any electronic assembly specifying a 4-40 female hex aluminum standoff at 1-1/4 inches overall length.

Installation Notes

Installation is performed by electronics assembly technicians or licensed electricians. De-energize all circuits before handling circuit boards or mounting hardware. Use a nut driver or open-end wrench sized for a 3/16-inch hex to torque the standoff to the chassis without distorting the hex body. Follow applicable NEC guidelines when working inside electrical enclosures.